My favorite version is to just bypass the wrist altogether and grab the forearm with both hands. The body dynamics are the same, but I can feel their body more directly, the whole thing feels more torque-y, and they tend to hit the mat much harder. I usually only do it when I fumble the grip though, as it isn't the demonstrated version... come to think of it, I don't even know where I got it. Does anyone else do this version?